Articles | Volume 32, issue 6
https://doi.org/10.5194/ejm-32-557-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ejm-32-557-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
02 Nov 2020
Research article |
| 02 Nov 2020
| 02 Nov 2020
Two new minerals, badengzhuite, TiP, and zhiqinite, TiSi2, from the Cr-11 chromitite orebody, Luobusa ophiolite, Tibet, China: is this evidence for super-reduced mantle-derived fluids?
Fahui Xiong
Center for Advanced Research on the Mantle (CARMA), Key Laboratory of Deep-Earth Dynamics of
Ministry of Land and Resources, Institute of Geology, Chinese Academy of
Geological Sciences, Beijing, 100037, China
Southern Marine Science and Engineering Guangdong Laboratory
(Guangzhou), Guangzhou, 511458, China
Xiangzhen Xu
Center for Advanced Research on the Mantle (CARMA), Key Laboratory of Deep-Earth Dynamics of
Ministry of Land and Resources, Institute of Geology, Chinese Academy of
Geological Sciences, Beijing, 100037, China
Enrico Mugnaioli
Center for Nanotechnology Innovation@NEST, Istituto Italiano di
Tecnologia (IIT), Piazza San Silvestro 12, 56127 Pisa, Italy
Mauro Gemmi
Center for Nanotechnology Innovation@NEST, Istituto Italiano di
Tecnologia (IIT), Piazza San Silvestro 12, 56127 Pisa, Italy
Richard Wirth
Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences,
Section 3.5, Interface Surface Geochemistry, Telegrafenberg, C 120, 14473
Potsdam, Germany
Edward S. Grew
CORRESPONDING AUTHOR
School of Earth and Climate Sciences, University of Maine,
Orono, Maine 04469, USA
Paul T. Robinson
Center for Advanced Research on the Mantle (CARMA), Key Laboratory of Deep-Earth Dynamics of
Ministry of Land and Resources, Institute of Geology, Chinese Academy of
Geological Sciences, Beijing, 100037, China
Jingsui Yang
Center for Advanced Research on the Mantle (CARMA), Key Laboratory of Deep-Earth Dynamics of
Ministry of Land and Resources, Institute of Geology, Chinese Academy of
Geological Sciences, Beijing, 100037, China
Southern Marine Science and Engineering Guangdong Laboratory
(Guangzhou), Guangzhou, 511458, China
School of Earth Sciences and Engineering, Nanjing University, Nanjing,
210023, China
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Eur. J. Mineral., 32, 187–207, https://doi.org/10.5194/ejm-32-187-2020, https://doi.org/10.5194/ejm-32-187-2020, 2020
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There have been many different ages found for ophiolite. We have researched these ages through fieldwork and microscopy to identify three types of dunite. These are useful ways to research the origin of ophiolitic magma. The Purang ophiolite, which crops out over an area of about 650 km2 in the western Yarlung–Zangbo suture zone, chiefly consists of mantle peridotite, pyroxenite and gabbro. It is a useful ultra-massif for showing the multistage nature of ophiolite.
Monika Koch-Müller, Oona Appelt, Bernd Wunder, and Richard Wirth
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Dense hydrous magnesium silicates, like the 3.65 Å phase, are thought to cause deep earthquakes. We investigated the dehydration of the 3.65 Å phase at P and T. In both directions of the investigated simple reaction, additional metastable water-rich phases occur. The observed extreme reduction in grain size in the dehydration experiments might cause mechanical instabilities in the Earth’s mantle and, finally, induce earthquakes.
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Processes associated with open pores can change the physical properties of rocks and cause earthquakes. In borehole samples from the Alpine Fault zone, we show that many pores in these rocks were filled by weak materials that can slide easily. The amount of open spaces was thus reduced, and fluids circulating within them built up high pressures. Both weak materials and high pressures within pores reduce the rock strength; thus the state of pores here can trigger the next Alpine Fault earthquake.
Jordi Rius, Fernando Colombo, Oriol Vallcorba, Xavier Torrelles, Mauro Gemmi, and Enrico Mugnaioli
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The crystal structure of the mineral decrespignyite-(Y) from the Paratoo copper mine (South Australia) has been obtained by applying δ recycling direct methods to 3D electron diffraction data followed by Rietveld refinements of synchrotron powder diffraction data. Its structure mainly shows a metal layer sequence of polyhedra interconnecting hexanuclear (octahedral) oxo-hydroxo yttrium clusters along a ternary axis or tilted clusters to hetero-tetranuclear ones hosting Cu, Y and rare earths.
Fahui Xiong, Jingsui Yang, Hans-Peter Schertl, Zhao Liu, and Xiangzhen Xu
Eur. J. Mineral., 32, 187–207, https://doi.org/10.5194/ejm-32-187-2020, https://doi.org/10.5194/ejm-32-187-2020, 2020
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Batoniite, [Al8(OH)14(H2O)18](SO4)5 ⋅ 5H2O, a new mineral with the [Al8(OH)14(H2O)18]10+ polyoxocation from the Cetine di Cotorniano Mine, Tuscany, Italy
Hochleitnerite, [K(H2O)]Mn2(Ti2Fe)(PO4)4O2(H2O)10 ⋅ 4H2O, a new paulkerrite-group mineral, from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria, Germany
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Mckelveyite group minerals – Part 1: Nomenclature and new data on donnayite-(Y)
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Whiteite-(CaMnFe), a new jahnsite-group mineral from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria
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Ferri-taramite, a new member of the amphibole supergroup, from the Jakobsberg Mn–Fe deposit, Värmland, Sweden
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Tomsquarryite, NaMgAl3(PO4)2(OH)6 ● 8H2O, a new crandallite-derivative mineral from Tom's phosphate quarry, Kapunda, South Australia
Graulichite-(La), LaFe3+3(AsO4)2(OH)6, a new addition to the alunite supergroup from the Patte d'Oie mine, Bou Skour mining district, Morocco
Arrojadite-group nomenclature: sigismundite reinstated
Redefinition of beraunite, Fe3+6(PO4)4O(OH)4 ⋅ 6H2O, and discreditation of the name eleonorite: a re-investigation of type material from the Hrbek Mine (Czech Republic)
Redefinition of angastonite, CaMgAl2(PO4)2(OH)4 ⋅ 7H2O, as an amorphous mineral
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Christian Rewitzer, Rupert Hochleitner, Ian E. Grey, Anthony R. Kampf, Stephanie Boer, and Colin M. MacRae
Eur. J. Mineral., 35, 805–812, https://doi.org/10.5194/ejm-35-805-2023, https://doi.org/10.5194/ejm-35-805-2023, 2023
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Regerite is the first new mineral species to be described from the Kreuzberg pegmatite, Pleystein, in the Oberpfalz, Bavaria. It has been characterised using electron microprobe analysis, Raman spectroscopy, optical measurements and a synchrotron-based single-crystal structure refinement. The structure type for regerite has not been previously reported.
Daniela Mauro, Cristian Biagioni, Jiří Sejkora, Zdeněk Dolníček, and Radek Škoda
Eur. J. Mineral., 35, 703–714, https://doi.org/10.5194/ejm-35-703-2023, https://doi.org/10.5194/ejm-35-703-2023, 2023
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Batoniite is a new mineral species belonging to the Al2O3–SO3–H2O ternary system, first found in the Cetine di Cotorniano Mine (Tuscany, Italy). This hydrated Al sulfate shows a novel crystal structure, characterized by Al octamers, so far reported in only synthetic compounds.
Ian E. Grey, Erich Keck, Anthony R. Kampf, Colin M. MacRae, Robert W. Gable, William G. Mumme, Nicholas C. Wilson, Alexander M. Glenn, and Cameron Davidson
Eur. J. Mineral., 35, 635–643, https://doi.org/10.5194/ejm-35-635-2023, https://doi.org/10.5194/ejm-35-635-2023, 2023
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Hochleitnerite is a new member of the paulkerrite group of minerals. Its crystal structure, chemical analyses and Raman spectroscopy are reported, and its crystallochemical properties are discussed in relation to other group members.
Lyudmila M. Lyalina, Ekaterina A. Selivanova, and Frédéric Hatert
Eur. J. Mineral., 35, 427–437, https://doi.org/10.5194/ejm-35-427-2023, https://doi.org/10.5194/ejm-35-427-2023, 2023
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There are unresolved problems related to the nomenclature and identification of mineral species belonging to the triphylite group of minerals. They can be solved by discarding the traditional views on succession of mineral species during oxidation. In other words, it is necessary to separate the concepts of the origin of the mineral and the boundaries of the species.
Yves Moëlo
Eur. J. Mineral., 35, 333–346, https://doi.org/10.5194/ejm-35-333-2023, https://doi.org/10.5194/ejm-35-333-2023, 2023
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Pyrite crystals with rhombohedral morphology have been known for a long time and were considered up to now as curiosities. The morphological study of well-crystallized, centimeter-sized crystals, often twinned, from the Madan Pb–Zn ore field permitted us to define such a pyrite variety as a pseudo-cubic trigonal derivative of pyrite.
Ian E. Grey, Rupert Hochleitner, Anthony R. Kampf, Stephanie Boer, Colin M. MacRae, John D. Cashion, Christian Rewitzer, and William G. Mumme
Eur. J. Mineral., 35, 295–304, https://doi.org/10.5194/ejm-35-295-2023, https://doi.org/10.5194/ejm-35-295-2023, 2023
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Manganrockbridgeite, Mn2+2Fe3+3(PO4)3(OH)4(H2O), a new member of the rockbridgeite group, has been characterised using electron microprobe analyses, Mössbauer spectroscopy, optical properties and single-crystal X-ray diffraction. Whereas other rockbridgeite-group minerals have orthorhombic symmetry with a statistical distribution of 50%Fe3+/50% vacancies in M3-site octahedra, monoclinic manganrockbridgeite has full ordering of Fe3+ and vacancies in alternate M3 sites along the 5.2 Å axis.
Ian E. Grey, Rupert Hochleitner, Christian Rewitzer, Anthony R. Kampf, Colin M. MacRae, Robert W. Gable, William G. Mumme, Erich Keck, and Cameron Davidson
Eur. J. Mineral., 35, 189–197, https://doi.org/10.5194/ejm-35-189-2023, https://doi.org/10.5194/ejm-35-189-2023, 2023
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Pleysteinite has been approved as a new mineral species, and we describe here the characterisation of the mineral and its relationship to related minerals benyacarite, paulkerrite and mantienneite. The characterisation includes the determination and refinement of the crystal structure, electron microprobe analyses, optical properties and interpretation of its Raman spectrum.
Inna Lykova, Ralph Rowe, Glenn Poirier, Gerald Giester, Kelsie Ojaste, and Henrik Friis
Eur. J. Mineral., 35, 133–142, https://doi.org/10.5194/ejm-35-133-2023, https://doi.org/10.5194/ejm-35-133-2023, 2023
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A new mineral group – the mckelveyite group – consisting of seven carbonate minerals was established. One of the seven members, donnayite-(Y), was re-investigated and its belonging to the mckelveyite group was confirmed.
Inna Lykova, Ralph Rowe, Glenn Poirier, Henrik Friis, and Kate Helwig
Eur. J. Mineral., 35, 143–155, https://doi.org/10.5194/ejm-35-143-2023, https://doi.org/10.5194/ejm-35-143-2023, 2023
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Alicewilsonite-(YCe), a new mckelveyite group, was found at Mont Saint-Hilaire, Quebec, Canada, and subsequently at the Saint-Amable sill, Quebec, Canada, and the Khibiny Massif, Kola Peninsula, Russia.
Rupert Hochleitner, Christian Rewitzer, Ian E. Grey, William G. Mumme, Colin M. MacRae, Anthony R. Kampf, Erich Keck, Robert W. Gable, and Alexander M. Glenn
Eur. J. Mineral., 35, 95–103, https://doi.org/10.5194/ejm-35-95-2023, https://doi.org/10.5194/ejm-35-95-2023, 2023
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The paper gives a characterisation of the new mineral species, whiteite-(CaMnFe), which has recently been approved as a new mineral (proposal IMA2022-077). The study included a single-crystal structure refinement that, when combined with electron microprobe analyses, confirmed that the mineral was a new member of the whiteite subgroup of the jahnsite group of minerals. Relationships between the crystal structure and the unit-cell parameters for the whiteite-subgroup minerals are discussed.
Cristian Biagioni, Ferdinando Bosi, Daniela Mauro, Henrik Skogby, Andrea Dini, and Federica Zaccarini
Eur. J. Mineral., 35, 81–94, https://doi.org/10.5194/ejm-35-81-2023, https://doi.org/10.5194/ejm-35-81-2023, 2023
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Dutrowite is the first tourmaline supergroup minerals having Ti as a species-defining chemical constituent. Its finding improves our knowledge on the crystal chemistry of this important mineral group and allows us to achieve a better picture of the mechanisms favouring the incorporation of Ti.
Chengyang Sun, Taijin Lu, Mingyue He, Zhonghua Song, and Yi Deng
Eur. J. Mineral., 34, 539–547, https://doi.org/10.5194/ejm-34-539-2022, https://doi.org/10.5194/ejm-34-539-2022, 2022
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It was determined that growth bands showing the straight birefringence in octahedral sectors and the enrichment of graphite inclusions in cuboid sectors of Zimbabwean mixed-habit diamonds may both be due to the fluctuation of temperature during crystallization, and they displayed positive anomalies of plastic deformation, residual stress, nitrogen concentration, and VN3H defects. This conclusion clearly revealed the correlation between birefringence and spectroscopic properties of diamonds.
Derek D. V. Leung and Paige E. dePolo
Eur. J. Mineral., 34, 523–538, https://doi.org/10.5194/ejm-34-523-2022, https://doi.org/10.5194/ejm-34-523-2022, 2022
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Minerals have complex crystal structures, but many common minerals are built from the same chemical building blocks. TotBlocks is a novel, open-source tool for investigating these structures. It consists of 3D-printed modules representing the silica tetrahedra and metal–oxygen octahedra that form the shared chemical building blocks of rock-forming minerals. TotBlocks is a low-cost visualization tool that relates mineral properties (habit, cleavage, and symmetry) to crystal structures.
Dan Holtstam, Fernando Cámara, Andreas Karlsson, Henrik Skogby, and Thomas Zack
Eur. J. Mineral., 34, 451–462, https://doi.org/10.5194/ejm-34-451-2022, https://doi.org/10.5194/ejm-34-451-2022, 2022
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A new mineral has been discovered, an amphibole, with the name ferri-taramite, which has now been approved by the International Mineralogical Association. The paper discusses the significance of the discovery in relation to other amphiboles found worldwide. This taramite is unique in that it is from a skarn associated with ore and is not of magmatic origin. For the description we have used many methods, including X-ray diffraction, chemical analyses and several types of spectroscopy.
Mariko Nagashima, Teruyoshi Imaoka, Takashi Kano, Jun-ichi Kimura, Qing Chang, and Takashi Matsumoto
Eur. J. Mineral., 34, 425–438, https://doi.org/10.5194/ejm-34-425-2022, https://doi.org/10.5194/ejm-34-425-2022, 2022
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Ferro-ferri-holmquistite (IMA2022-020), ideal formula ☐Li2(Fe32+Fe23+)Si8O22(OH)2, was found in albitized granite from the Iwagi islet, Ehime, Japan. It is a Fe2+Fe3+ analogue of holmquistite and belongs to the lithium subgroup amphiboles. Ferro-ferri-holmquistite occurs as blue acicular crystals typically replacing the biotite and is the product of metasomatic mineral replacement reactions by dissolution–reprecipitation processes associated with Na- and Li-rich hydrothermal fluids.
Peter Elliott, Ian E. Grey, William G. Mumme, Colin M. MacRae, and Anthony R. Kampf
Eur. J. Mineral., 34, 375–383, https://doi.org/10.5194/ejm-34-375-2022, https://doi.org/10.5194/ejm-34-375-2022, 2022
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This paper describes the characterisation of a new mineral from a South Australian phosphate quarry. The characterisation included chemical analyses, infrared spectroscopy, and a determination and refinement of the crystal structure. The results showed that the mineral has a unique crystal chemistry, but it is closely related to the well-known phosphate mineral crandallite.
Cristian Biagioni, Marco E. Ciriotti, Georges Favreau, Daniela Mauro, and Federica Zaccarini
Eur. J. Mineral., 34, 365–374, https://doi.org/10.5194/ejm-34-365-2022, https://doi.org/10.5194/ejm-34-365-2022, 2022
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The paper reports the type description of the new mineral species graulichite-(La). This is a new addition to the dussertite group within the alunite supergroup, and its discovery improves our knowledge on the crystal chemistry of this important supergroup of minerals, having both technological and environmental applications.
Frank de Wit and Stuart J. Mills
Eur. J. Mineral., 34, 321–324, https://doi.org/10.5194/ejm-34-321-2022, https://doi.org/10.5194/ejm-34-321-2022, 2022
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The name sigismundite has been reinstated for what was previously arrojadite-(BaFe). Sigismundite honours Pietro Sigismund (1874–1962), and this paper outlines his significant contributions to Italian mineralogy.
Luboš Vrtiška, Jaromír Tvrdý, Jakub Plášil, Jiří Sejkora, Radek Škoda, Nikita V. Chukanov, Andreas Massanek, Jan Filip, Zdeněk Dolníček, and František Veselovský
Eur. J. Mineral., 34, 223–238, https://doi.org/10.5194/ejm-34-223-2022, https://doi.org/10.5194/ejm-34-223-2022, 2022
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The study of the original material of beraunite from the type locality Hrbek, Czech Rep., from collections of the TU Bergakademie Freiberg (Germany) and National Museum Prague (Czech Republic) proved the identity of the minerals beraunite and eleonorite. Because the name beraunite has priority, we consider the name eleonorite to be redundant and proposed to abolish it. The proposal 21-D approved by the IMA discredited eleonorite and accepted the formula of beraunite Fe3+6(PO4)4O(OH)4·6H2O.
Ian Edward Grey, Peter Elliott, William Gus Mumme, Colin M. MacRae, Anthony R. Kampf, and Stuart J. Mills
Eur. J. Mineral., 34, 215–221, https://doi.org/10.5194/ejm-34-215-2022, https://doi.org/10.5194/ejm-34-215-2022, 2022
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A reinvestigation of angastonite from the type locality has shown that it is a mixture of crystalline phases and an amorphous phase, with the published formula corresponding to the amorphous phase. A redefinition proposal for angastonite as an amorphous mineral was approved by the IMA CNMNC. Our study showed how the amorphous phase formed and how it progressively recrystallises as new crandallite-related minerals.
Yuan Xue, Ningyue Sun, Hongping He, Aiqing Chen, and Yiping Yang
Eur. J. Mineral., 34, 95–108, https://doi.org/10.5194/ejm-34-95-2022, https://doi.org/10.5194/ejm-34-95-2022, 2022
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Liguowuite, a new member of the non-stoichiometric perovskite group minerals, ideally WO3, has been found in the Panzhihua–Xichang region, China. Liguowuite is monoclinic and is in space group P21 / n, with a = 7.32582(18) Å, b = 7.54767(18) Å, c = 7.71128(18) Å, β = 90.678(3)°, V = 426.348(19) Å3, and Z = 8. According to the hierarchical scheme for perovskite supergroup minerals, liguowuite is the first reported example of A-site vacant single oxide, i.e., a new perovskite subgroup.
Fernando Cámara, Dan Holtstam, Nils Jansson, Erik Jonsson, Andreas Karlsson, Jörgen Langhof, Jaroslaw Majka, and Anders Zetterqvist
Eur. J. Mineral., 33, 659–673, https://doi.org/10.5194/ejm-33-659-2021, https://doi.org/10.5194/ejm-33-659-2021, 2021
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Zinkgruvanite, a barium manganese iron silicate with sulfate, is a new mineral found in drill core samples from the Zinkgruvan zinc, lead and silver mine in Sweden. It is associated with other minerals like baryte, barytocalcite, diopside and sulfide minerals. It occurs as flattened and elongated crystals up to 1 mm. It is almost black. Zinkgruvanite is closely related to the mineral yoshimuraite and based on its crystal structure, grouped with the ericssonite group of minerals.
Biljana Krüger, Evgeny V. Galuskin, Irina O. Galuskina, Hannes Krüger, and Yevgeny Vapnik
Eur. J. Mineral., 33, 341–355, https://doi.org/10.5194/ejm-33-341-2021, https://doi.org/10.5194/ejm-33-341-2021, 2021
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This is the first description of the new mineral kahlenbergite, found in the Hatrurim Basin, Israel, which is a region with unusual pyrometamorphic rocks. Kahlenbergite is chemically and structurally characterized. It is very similar to β-alumina compounds, which are synthetic materials known for their properties as fast ion conductors. Research in the Hatrurim Basin is needed to understand the complex mechanisms that created this mineralogically diverse
hotspotof new minerals.
Antonia Cepedal, Mercedes Fuertes-Fuente, and Agustín Martin-Izard
Eur. J. Mineral., 33, 165–174, https://doi.org/10.5194/ejm-33-165-2021, https://doi.org/10.5194/ejm-33-165-2021, 2021
Pavel Škácha, Jiří Sejkora, Jakub Plášil, Zdeněk Dolníček, and Jana Ulmanová
Eur. J. Mineral., 33, 175–187, https://doi.org/10.5194/ejm-33-175-2021, https://doi.org/10.5194/ejm-33-175-2021, 2021
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Grimmite, sulfide of cobalt and nickel, is the new mineral for the mineralogical system.
Thomas Witzke, Martin Schreyer, Benjamin Brandes, René Csuk, and Herbert Pöllmann
Eur. J. Mineral., 33, 1–8, https://doi.org/10.5194/ejm-33-1-2021, https://doi.org/10.5194/ejm-33-1-2021, 2021
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The new mineral species freitalite, C14H10, corresponding to the aromatic hydrocarbon anthracene, has been discovered on the mine dump of the Königin Carola shaft (Paul Berndt Mine), Freital, near Dresden, Saxony, Germany. Freitalite is a product of pyrolysis of coal and was formed by sublimation from a gas phase. The mineral was identified by several analytical methods.
Stuart J. Mills, Uwe Kolitsch, Georges Favreau, William D. Birch, Valérie Galea-Clolus, and Johannes Markus Henrich
Eur. J. Mineral., 32, 637–644, https://doi.org/10.5194/ejm-32-637-2020, https://doi.org/10.5194/ejm-32-637-2020, 2020
Yuan Xue, Guowu Li, and Yingmei Xie
Eur. J. Mineral., 32, 483–494, https://doi.org/10.5194/ejm-32-483-2020, https://doi.org/10.5194/ejm-32-483-2020, 2020
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Wumuite, ideally KAl0.33W2.67O9 with a hexagonal tungsten bronze (HTB)-type structure, is another new mineral containing potassium and tungsten found in the Pan–Xi region in China after tewite was discovered. In this study, artificial synthetic experiments have been conducted to explore the formation process of wumuite and tewite. Wumuite was speculated to be formed by a metasomatic reaction between W-rich hydrothermal fluids and the potassium feldspar in the monzonite.
Simon Philippo, Frédéric Hatert, Yannick Bruni, Pietro Vignola, and Jiří Sejkora
Eur. J. Mineral., 32, 449–455, https://doi.org/10.5194/ejm-32-449-2020, https://doi.org/10.5194/ejm-32-449-2020, 2020
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Luxembourgite, ideally AgCuPbBi4Se8, is a new selenide discovered at Bivels, Grand Duchy of Luxembourg. The mineral forms tiny fibres deposited on dolomite crystals. Its crystal structure is similar to those of litochlebite and watkinsonite, and can be described as an alternation of two types of anionic layers: a pseudotetragonal layer four atoms thick and a pseudohexagonal layer one atom thick. The species named for the city of Luxembourg, close to its locality of discovery.
Anthony R. Kampf, Barbara P. Nash, Jakub Plášil, Jason B. Smith, and Mark N. Feinglos
Eur. J. Mineral., 32, 373–385, https://doi.org/10.5194/ejm-32-373-2020, https://doi.org/10.5194/ejm-32-373-2020, 2020
Cristiano Ferraris, Isabella Pignatelli, Fernando Cámara, Giancarlo Parodi, Sylvain Pont, Martin Schreyer, and Fengxia Wei
Eur. J. Mineral., 32, 355–365, https://doi.org/10.5194/ejm-32-355-2020, https://doi.org/10.5194/ejm-32-355-2020, 2020
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Laurentthomasite is a new mineral from Madagascar showing a very strong dichroism going from deep blue to yellow-green colours. The physical and chemical characteristics of this gem quality mineral bring it to the attention of the jewel industry as well as collectors of cut stones.
Elena Bonaccorsi and Paolo Orlandi
Eur. J. Mineral., 32, 347–354, https://doi.org/10.5194/ejm-32-347-2020, https://doi.org/10.5194/ejm-32-347-2020, 2020
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Molybdates are of a great interest due to their ionic conductivity, negative thermal expansion, and immobilization of radionuclides. The new mineral tancaite-(Ce), FeCe(MoO4)3•3H2O, shows a new structure type never observed in natural and synthetic molybdates. Its cubic average structure may be described as a derivative of the perovskite structure, in which Fe-centred octahedra are linked through MoO4 groups. The ordering of Mo and O atoms results in one or more complex superstructures.
Natale Perchiazzi, Ulf Hålenius, Nicola Demitri, and Pietro Vignola
Eur. J. Mineral., 32, 265–273, https://doi.org/10.5194/ejm-32-265-2020, https://doi.org/10.5194/ejm-32-265-2020, 2020
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Type material for heliophyllite, preserved in the Swedish Museum of Natural History in Stockholm, was re-investigated through a combined EPMA (electron probe X-ray microanalysis), Raman, and X-ray powder diffraction (XRPD) and single-crystal study. EPMA chemical data, together with Raman and single-crystal structural studies, point to heliophyllite being identical to ecdemite. XRPD synchrotron data highlight the presence of a minor quantity of finely admixed finnemanite in the analyzed material.
Jan Parafiniuk and Frédéric Hatert
Eur. J. Mineral., 32, 215–217, https://doi.org/10.5194/ejm-32-215-2020, https://doi.org/10.5194/ejm-32-215-2020, 2020
Ekaterina Kaneva, Tatiana Radomskaya, Ludmila Suvorova, Irina Sterkhova, and Mikhail Mitichkin
Eur. J. Mineral., 32, 137–146, https://doi.org/10.5194/ejm-32-137-2020, https://doi.org/10.5194/ejm-32-137-2020, 2020
Tomas Husdal, Ian E. Grey, Henrik Friis, Fabrice Dal Bo, Anthony R. Kampf, Colin M. MacRae, W. Gus Mumme, Ole-Thorstein Ljøstad, and Finlay Shanks
Eur. J. Mineral., 32, 89–98, https://doi.org/10.5194/ejm-32-89-2020, https://doi.org/10.5194/ejm-32-89-2020, 2020
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This paper describes the characterization of a new mineral from the Oumlil mine in the Bou Azzer cobalt mining district in Morocco. This mining district is one of the world's largest producers of the important element cobalt. This study on the new mineral halilsarpite provides useful information on the results of chemical weathering processes on the primary arsenide minerals at the mine.
Cited articles
Bai, W. J., Shi, N. C., Fang, Q. S., Li, G. W., Xiong, M., Yang, J. S., and Rong,
H.: Luobusaite – A New Mineral, Act. Geol. Sin., 80,
656–659, https://doi.org/10.1111/j.1755-6724.2006.tb00289.x, 2006.
Beyers, R. and Sinclair, R.: Metastable phase formation in titanium-silicon
thin films, J. Appl. Phys., 57, 5240–5245, https://doi.org/10.1063/1.335263, 1985.
Biltz, W., Rink, A., and Wiechmann, F.: Beiträge zur systematischen
Verwandtschaftslehre. 83. Über die Verbindungsfähigkeit von Titan
mit Phosphor, Z. Anorg. Allg. Chem., 238,
395-405, 1938
Burla, M. C., Caliandro, R., Carrozzini, B., Cascarano, G. L., Cuocci, C.,
Giacovazzo, C., Mallamo, M., Mazzone, A., and Polidori, G.: Crystal
structure determination and refinement via SIR2014, J. Appl.
Crystallogr., 48, 306–309, https://doi.org/10.1107/S1600576715001132,
2015.
Chinelatto, A. S. A., Contardi, O. A., Pallone, E. M. J. A., and Tomasi, R.:
Production of Alumina Matrix Nanocomposites with Inclusions of TiC and
TiB2, via Reactive Milling, Key Eng. Mater., 189–191,
208–215, https://doi.org/10.4028/www.scientific.net/kem.189-191.208, 2001.
Cichy, P.: Fused Alumina Production. The Metallurgical Society of the
American Institute of Mining, Metallurgical, and Petroleum Engineers, Paper
No. EFC-7, New York, 48 pp., 1972.
Cliff, G. and Lorimer, G.W.: The quantitative analysis of thin specimens,
J. Microscopy, 103, 203–207,
https://doi.org/10.1111/j.1365-2818.1975.tb03895.x, 1975.
Coes, L. J.: Abrasives, Applied Mineralogy, vol. 1, Springer-Verlag, Wien,
177 pp., https://doi.org/10.1002/maco.19720230421, 1971.
Corrigan, F. R. and Bundy, F. P.: Direct transitions among the allotropic
forms of boron nitride at high pressures and temperatures, J.
Chem. Phys., 63, 3812–3820, 1975.
Cotter, P. G., Kohn, J. A., and Potter, R. A.: Physical and X-ray study of the
disilicides of titanium zirconium, and hafnium, J. Am.
Ceram. Soc., 39, 11-12,
https://doi.org/10.1111-/j.1151-2916.1956.tb15590.x, 1956.
Davis, G. L. and Tuttle, O. F.: Two new crystalline phases of the anorthite
composition, CaO⋅Al2O3⋅2SiO2, Am.
J. Sci., Bowen Volume, 107–114, 1952.
Day, H. W.: A revised diamond-graphite transition curve, Am.
Mineral., 97, 53–62, 2012.
Dobrzhinetskaya, L. F., Wirth, R., Yang, J., Hutcheon, I. D., Weber, P. K., and
Green II., H. W.: High-pressure highly reduced nitrides and oxides from
chromitite of a Tibetan ophiolite, P. Natl. Acad.
Sci. USA, 106, 19233–19238, https://doi.org/10.1073/pnas.0905514106, 2009
Dobrzhinetskaya, L. F., Wirth, R., Yang, J., Green, H. W., Hutcheon, I. D.,
Weber, P. K., and Grew, E. S.: Qingsongite, natural cubic boron nitride: The
first boron mineral from the Earth's mantle, Am. Mineral., 99,
764–772, https://doi.org/10.2138/am.2014.4714, 2014.
Essene, E. J. and Fisher, D. C.: Lightning Strike Fusion: Extreme Reduction
and Metal-Silicate Liquid Immiscibility, Science, 234, 189–193,
https://doi.org/10.1126/science.234.4773.189, 1986.
Evans, N. J., Davis, J. J., Byrnec, J. P., and French, D.: Contamination-free
preparation of geological samples for ultra-trace gold and platinum-group
element analysis, J. Geochem. Exp. 80, 19–24,
https://doi.org/10.1016/S0375-6742(03)00140-7, 2003.
Fahey, J. A., Weber, W. J., and Rotella, F. J.: An X-Ray and neutron powder
diffraction study of the
Ca2+xNd8−x(SiO4)6O2−0.5x system, J. Solid State Chem., 60, 145–158,
https://doi.org/10.1016/0022-4596(85)90106-9, 1985.
Fang, Q. S., Bai, W. J., Yang, J. S., Xu, X. Z., Li, G. W., Shi, N. C., Xiong, M.,
and Rong, H.: Qusongite (WC): A new mineral, Am. Mineral., 94,
387–390, https://doi.org/10.2138/am.2009.3015, 2009.
Fang, Q., Bai, W., Yang, J., Rong, H., Shi, N., Li, G., Xiong, M., and Ma,
Z.: Titanium, Ti, a new mineral species from Luobusha, Tibet, China, Act.
Geol. Sin. 87, 1275–1280, https://doi.org/10.1111/1755-6724.12128,
2013.
Filonenko, N. E. and Lavrov, I. V.: Petrography of the Artificial Abrasives,
Mashgiz, Moscow, 90 pp., 1958 (in Russian).
Fiore, M., Beneduce Netoa, F. B., and de Farias Azevedoa, C. R.:
Assessment of the Ti-Rich corner of the Ti-Si phase diagram: The recent
dispute about the eutectoid reaction, Mater. Res., 19, 942–953,
https://doi.org/10.1590/1980-5373-MR-2016-0157, 2016.
Fisher, G.: Zirconia: Ceramic engineering's toughness challenge, Am.
Ceram. Soc. Bull., 65, 1355–1360, 1986.
Frommeyer, G. and Rosenkranz, R.: Structures and properties of the
refractory silicides Ti5Si3 and TiSi2 and Ti-Si-(Al)
eutectic alloys, in: Metallic
Materials with High Structural Efficiency, edited by: Senkov, O. N., Miracle, D. B., and Firstov, S. A., NATO Science Series, Series II:
Mathematics, Physics and Chemistry, 146, 287–308,
https://doi.org/10.1007/1-4020-2112-7_30, 2004.
Gemmi, M. and Lanza, A.: 3D electron diffraction techniques, Acta Cryst., 75, 495–504, https://doi.org/10.1107/S2052520619007510, 2019.
Gemmi, M., Mugnaioli, E., Gorelik, T. E., Kolb, U., Palatinus, L., Boullay,
P., Hovmöller, S., and Abrahams, J. P.: 3D electron diffraction: the
nanocrystallography revolution, ACS Cent. Sci., 5, 1315–1329,
https://doi.org/10.1021/acscentsci.9b00394, 2019.
Gewecke, J.: Ueber die Phosphide des Titans and Zirkons, Liebigs Ann. Chem., 361, 79–88,
https://doi.org/10.1002/jlac.19083610106, 1908.
Goldsmith, J. R.: The melting and breakdown reactions of anorthite at high
pressures and temperatures, Am. Mineral., 65, 272–284,
https://doi.org/10.1007/BF01243532, 1980.
Griffin, W. L., Gain, S. E. M., Adams, D. T., Huang, J. X., Saunders, M., Toledo,
V., Pearson, N. J., and O'Reilly, S. Y.: First terrestrial occurrence of
tistarite (Ti2O3): Ultra-low oxygen fugacity in the upper mantle
beneath Mount Carmel, Israel, Geology, 44, 815–818,
https://doi.org/10.1130/G37910.1, 2016a.
Griffin, W. L., Afonso, J. C., Belousova, E. A., Gain, S. E., Gong, X.-H.,
González-Jiménez, J. M., Howell, D., Huang, J.-X., McGowan, N.,
Pearson, N. J., Satsukawa, T., Shi, R.,Williams, P., Xiong, Q., Yang, J.-S.,
Zhang, M., and O'Reilly, S. Y.: Mantle recycling: transition-zone
metamorphism of Tibetan ophiolitic peridotites and its tectonic
implications, J. Petrol., 57, 655–684 https://doi.org/10.1093/petrology/egw011, 2016b.
Griffin, W. L., Huang, J.-X., Thomassot, E., Gain, S. E. M., Toledo, V., and
O'Reilly, S. Y.: Super-reducing conditions in ancient and modern volcanic
systems: Sources and behaviour of carbon-rich fluids in the lithospheric
mantle, Mineral. Petrol., 112, 101–114, https://doi.org/10.1007/s00710-018-0575-x, 2018.
Griffin, W. L., Gain, S. E., Huang, J.-X., Saunders, M., Shaw, J., Toledo, V.,
and O'Reilly, S. Y.: A terrestrial magmatic hibonite-grossite-vanadium
assemblage: desilication and extreme reduction in a volcanic plumbing
system, Mount Carmel, Israel, Am. Mineral. 104, 207–219,
https://doi.org/10.2138/am-2019-6733, 2019a.
Griffin, W. L., Toledo, V., and O'Reilly, S. Y.: Discussion of “Enigmatic
super-reduced phases in corundum from natural rocks: possible contamination
from artificial abrasive materials or metallurgical slags” by Litasov et al.,
(Lithos, v.340–341, p.181–190), Lithos, 348, 105122,
https://doi.org/10.1016/j.lithos.2019.06.024, 2019b.
Griffin, W. L., Gain, S. E. M., Saunders, M., Bindi, L., Alard, O., Toledo,
V., and O'Reilly, S. Y.: Parageneses of TiB2 in corundum xenoliths from
Mt Carmel, Israel: Siderophile behaviour of boron under reducing conditions,
Am. Mineral., https://doi.org/10.2138/am-2020-7375, in press, 2020.
Hariya, Y. and Kennedy, G. C.: Equilibrium study of anorthite under high
pressure and high temperature, Am. J. Sci., 266, 193–203,
https://doi.org/10.2475/ajs.266.3.193, 1968.
Hawthorne, F. C., Burke, E. A. J., Ercit, T. S., Grew, E. S., Grice, J. D.,
Jambor, J. L., Puziewicz, J., Roberts, A. C., and Vanko, D. A.: New Mineral Names,
Am. Mineral., 73, 189–199, 1988.
Hönigschmid, O.: Surle siliciure de zirconium ZrSi2 et le siliciure
de titane TiSi2, Cr. Hebd. Acad. Sci., 143, 224–226, 1906.
Jeitschko, W.: Refinement of the crystal structure of TiSi2 and some
comments on bonding in TiSi2 and related compounds, Act.
Crystallogr., B33, 2347–2348,
https://doi.org/10.1107/S0567740877008462, 1977.
Knausenberger, M., Brauer, G., and Gingerich, K. A.: Preparation and phase
studies of titanium phosphides, J. Less-Common Met., 8,
136–148, https://doi.org/10.1016/0022-5088(65)90105-0, 1965.
Kolb, U., Mugnaioli, E., and Gorelik, T. E.: Automated electron diffraction
tomography – A new tool for nano crystal structure analysis, Cryst.
Res. Technol., 46, 542–554, https://doi.org/10.1002/crat.201100036, 2011
Krivovichev, S. V., Shcherbakova, E. P., and Nishanbaev, T. P.: The crystal
structure of svyatoslavite and evolution of complexity during
crystallization of a CaAl2Si2O8 melt: A structural automata
description, Can. Mineral., 50, 585–592,
https://doi.org/10.3749/canmin.50.3.585, 2012.
Laves, F. and Wallbaum, H. J.: Die Kristallstruktur von Ni3Ti und
Si2Ti, Z. Kristallogr., 101, 78–93,
https://doi.org/10.1524/zkri.1939.101.1.78, 1939.
Li, C. Y., Yu, Z. H., Liu, H. Z., and Lü, T. Q.: The crystallographic
stability and anisotropic compressibility of C54- type TiSi2 under high
pressure, J. Phys. Chem. Sol., 74, 1291–1294,
https://doi.org/10.1016/j.jpcs.2013.04.006, 2013.
Li, G., Fang, Q., Shi, N., Bai, W., Yang, J., Xiong, M., Ma, Z., and Rong,
H.: Zangboite, TiFeSi2, a new mineral species from Luobusha, Tibet,
China, and its crystal structure, Can. Mineral., 47, 1265–1274,
https://doi.org/10.3749/canmin.47.5.1265, 2009.
Li, G., Bai, W., Shi, N., Fang, Q., Xiong, M., Yang, J., Ma, Z., and Rong,
H.: Linzhiite, FeSi2, a redefined and revalidated new mineral species
from Luobusha, Tibet, China, Eur. J. Mineral., 24, 1047–1052,
https://doi.org/10.1127/0935-1221/2012/0024-2237, 2012.
Liang, F., Xu, Z., and Zhao, J.: In-situ moissanite in dunite of the Luobusa
Ophiolite, Tibet: Implications for deep mantle origin, Acta Geol. Sin.-Engl., 89, 47–49,
https://doi.org/10.1111/1755-6724.12308_32, 2015.
Litasov, K. D., Kagi, H., and Bekker, T. B.: Enigmatic super-reduced phases in
corundum from natural rocks: Possible contamination from artificial abrasive
materials or metallurgical slags, Lithos, 340–341, 181–190,
https://doi.org/10.1016/j.lithos.2019.05.013, 2019a.
Litasov, K. D., Bekker, T. B., and Kagi, H.: Reply to the discussion of “Enigmatic super-reduced phases in corundum from natural rocks: Possible contamination from artificial abrasive materials or metallurgical slags” by Litasov et al. (Lithos, v.340–341, p.181–190) by W.L. Griffin, V. Toledo and S.Y. O'Reilly,
Lithos, 348–349, 105170, https://doi.org/10.1016/j.lithos.2019.105170, 2019b.
Liu, J. and Ownby, P. D.: Enhanced mechanical properties of alumina by
dispersed titanium diboride particulate inclusions, J. Am.
Ceram. Soc., 74, 241–243,
https://doi.org/10.1111/j.1151-2916.1991.tb07327.x, 1991.
Lundström, T.: Preparation and crystal chemistry of some refractory
borides and phosphides, Ark. Kemi, 31, 227–266, 1969.
Malpas, J., Zhou, M. F., Robinson, P. T., and Reynolds, P.: Geochemical and
geochronological constraints on the origin and emplacement of the
Yarlung-Zangbo ophiolites, Southern Tibet, in: Ophiolites Through Earth History, edited by: Dilek, Y. and Robinson, P. T., Geol. Soc. Sp., 218, 191–206,
https://doi.org/10.1144/GSL.SP.2003.218.01.11, 2003.
Mohammad Sharifi, E., Karimzadeh, F., and Enayati, M. H.: Synthesis of
titanium diboride reinforced alumina matrix nanocomposite by mechanochemical
reaction of Al–TiO2–B2O3, J. Alloy. Compd.,
502, 508–512, https://doi.org/10.1016/j.jallcom.2010.04.207, 2010.
Momma, K. and Izumi, F.: VESTA 3 for three-dimensional visualization of
crystal, volumetric and morphology data, J. Appl. Crystallogr.,
44, 1272–1276, https://doi.org/10.1107/S0021889811038970, 2011.
Mugnaioli, E., Gorelik, T., and Kolb, U.: ”Ab initio” structure solution
from electron diffraction data obtained by a combination of automated
diffraction tomography and precession technique, Ultramicroscopy, 109,
758–765, https://doi.org/10.1016/j.ultramic.2009.01.011, 2009.
Nederlof, I., van Genderen, E., Li, Y., and Abrahams, J. P.: A Medipix
quantum area detector allows rotation electron diffraction data collection
from submicrometre three-dimensional protein crystals, Act.
Crystallogr. D, 69, 1223–1230,
https://doi.org/10.1107/S0907444913009700, 2013.
Nowotny, H.: Alloy chemistry of transition elements borides, carbites,
nitrides, aluminides, and silicides, in Electronic
structure and Alloy Chemistry of the Transition Elements, edited by: Beck, P. A., Wiley
& Sons, New York, London, 179–220, 1963.
Ohtani, H., Hanaya, N., Hasebe, M., Teraoka, S., and Abe, M.: Thermodynamic
Analysis of the Fe-Ti–P Ternary System by Incorporating First-Principles
Calculations into the CALPHAD Approach, Calphad, 30, 147–158,
https://doi.org/10.1016/j.calphad.2005.09.006, 2006.
Okamoto, H.: P-Ti (Phosphorus-Titanium), J. Phase Equilib. Diff., 28, 587,
https://doi.org/10.1007/s11669-007-9184-9, 2007.
Ottonello, G., Attene, M., Ameglio, D., Belmonte,D., Zuccolini, M. V., and
Natali, M.: Thermodynamic investigation of the
CaO–Al2O3–SiO2 system at high P and T through polymer
chemistry and convex-hull techniques, Chem. Geol., 346, 81–92,
https://doi.org/10.1016/j.chemgeo.2012.09.018, 2013.
Palatinus, L., Petříček, V., and Correa, C. A.: Structure
refinement using precession electron diffraction tomography and dynamical
diffraction: theory and implementation, Act. Crystallogr. A, 71,
235–244, https://doi.org/10.1107/S2053273315001266, 2015.
Palatinus, L, Brázda, P., Jelínek, M., Hrdá, J., Steciuk, G., and
Klementová, M.: Specifics of the data processing of precession electron
diffraction tomography data and their implementation in the program PETS2.0,
Acta Crystallogr., 75, 512–522, 2019.
Pekov, I. V., Anikin, L. P., Chukanov, N. V., Belakovskiy, D. I., Yapaskurt,
V. O., Sidorov, E. G., Britvin, S. N., and Zubkova, N. V.: Deltalumite, a
new natural modification of alumina with spinel-type structure, Zapiski
Rossiiskogo Mineralogicheskogo Obshchetstva 148, 45–58,
2019 (in Russian).
Peshov, P. and Kristov, M.: Preparation of titanium disilicide single
crystals by chemical vapour transport with halogens, J.
Less-Common Met., 117, 361–368,
https://doi.org/10.1016/0022-5088(86)90061-5, 1986.
Petříček, V., Dušek, M., and Palatinus, L.: Crystallographic
computing system JANA2006: general features, Z.
Kristallogr., 229, 345–352, https://doi.org/10.1515/zkri-2014-1737,
2014.
Polubelova, A. S., Krylov, V. N., Karlin, V. V., and Efimova, I. S.: Production of
Abrasive Materials, Mashinostroenie, Leningrad, 1968 (in Russian).
Ripley, R. L.: The preparation and properties of some transition phosphides,
J. Less-Common Met., 4, 496–503,
https://doi.org/10.1016/0022-5088(62)90037-1, 1962.
Robinson, P. T., Bai, W.-J., Malpas, J., Yang, J.-S., Zhou, M.-F., Fang,
Q.-S., Hu, X.-F., and Cameron, S.: Ultra-high pressure minerals in the
Luobusha ophiolite, Tibet and their tectonic implications, in: Aspects of the
tectonic evolution of China, edited by: Malpas, J.,
Fletcher, C. J. N., Ali, J. R., and Aitchison, J. C., Geol. Soc. Sp.,
226, 247–271, https://doi.org/10.1144/GSL.SP.2004.226.01.14, 2004.
Robinson, P. T., Trumbull, R. B., Schmitt, A., Yang, J. S., Li, J. W., Zhou,
M. F., Erzinger, J., Dare, S., and Xiong, F. H.: The origin and significance
of crustal minerals in ophiolitic chromitites and peridotites, Gondwana
Res., 27, 486–506, https://doi.org/10.1016/j.gr.2014.06.003, 2015.
Ross, A. J., Downes, H., Herrin, J. S., Mittlefehldt, D. W., Humayun, M., and
Smith, C.: The origin of iron silicides in ureilite meteorites,
Geochemistry, 79, 125539, https://doi.org/10.1016/j.chemer.2019.125539,
2019.
Schrewelius, N. G.: Constitution and microhardness of fused corundum
abrasives, J. Am. Ceram. Soc., 31, 170–175,
https://doi.org/10.1111/j.1151-2916.1948.tb14285.x, 1948.
Shi, N. C., Bai, W. J., Li, G. W., Xiong, M., Yang, J. S., Ma, Z. S., and Rong,
H.: Naquite, FeSi, a new mineral species from Luobusha, Tibet, Western
China, Act. Geol. Sin., 86, 533–538,
https://doi.org/10.1111/j.1755-6724.2012.00682.x, 2012.
Snell, P.-O.: The crystal structure of TiP, Act. Chem. Scand., 27,
1773–1776, https://doi.org/10.3891/acta.chem.scand.21-1773, 1967.
Stubicon, V. S. and Hellmann, J. R.: Phase equilibria in some zirconia
systems, Science and Technology of Zirconia, 25–36, 1981.
Su, B., Zhou, M., Jing, J., Robinson, P. T., Chen, C., Xiao, Y., Xia Liu, X.,
Shi, R., Davide Lenaz, D., and Hu, Y.: Distinctive melt activity and
chromite mineralization in Luobusa and Purang ophiolites, southern Tibet:
constraints from trace element compositions of chromite and olivine, Sci.
Bull., 64, 108–121, https://doi.org/10.1016/j.scib.2018.12.018, 2019.
Sun, Y., Li, Y., Zhang, L., Shen, Y., and Sun, J.: Formation mechanism of
Ti(C, N) solid solution in Al-brown fused alumina refractory at 1973 K in
flowing N2, Ceramics International, 46, 2654–2660,
https://doi.org/10.1016/j.ceramint.2019.09.250, 2020.
Svechnikov, V. N., Kocherzhisky, Y. A., Yupko, L. M., Kulik, O. G., and
Shinshkin, E.A.: Phase diagram of the titanium-silicon system, Doklady
Akademii Nauk SSSR, 193, 393–396, 1970 (in Russian).
Takéuchi, Y. and Donnay, G.: The crystal structure of hexagonal
CaAl2Si2O8, Acta Crystallogr, 12, 465–470,
https://doi.org/10.1107/S0365110X59001396, 1959.
Ulmer, G. C., Grandstaff, D. E., Woermann, E., Göbbels, M., Schönitz,
and Woodland, A. B.: The redox stability of moissanite (SiC) compared with
metal-metal oxide buffers at 1773 K and at pressures up to 90kbar, Neues
Jahrbuch für Mineralogie – Abhandlungen, 172, 279–307, 1998.
Utsunomiya, S., Yudintsev, S., Wang, L. M., and Ewing, R. C.: Ion-beam and
electron-beam irradiation of synthetic britholite, J. Nucl.
Mater., 322, 180–188, https://doi.org/10.1016/S0022-3115(03)00327-1,
2003.
Vincent, R. and Midgley, P. A.: Double conical beam-rocking system for
measurement of integrated electron diffraction intensities, Ultramicroscopy,
53, 271–282, https://doi.org/10.1016/0304-3991(94)90039-6, 1994.
Wang, H. S., Bai, W. J., Wang, B. X., and Chai, Y. C.: Chromite deposits in
China and their origin, Beijing: Science Publishing House,
1983 (in Chinese).
Wang, X. B., Bao, P. S., Deng, W. M., and Wang, F. G.: Tibet ophiolite, Beijing:
Geological Publishing House, 1987 (in Chinese).
Wang, X. B., Zhou, X., and Hao, Z. G.: Some opinions on further exploration
for chromite deposits in the Luobusa area, Tibet, China, Geol. Bull.
China, 29, 105–114, 2010 (in Chinese with English abstract).
Weitzer, F., Schuster, J. C., Naka, M., Stein, F., and Pulm, M.: On the
reaction scheme and liquidus surface in the ternary system Fe–Si–Ti,
Intermetallics, 16, 273–282, https://doi.org/10.1016/j.intermet.2007.10.006,
2008.
Wirth, R.: Focused ion beam (FIB): a novel technology for advanced
application of micro- and nanoanalysis in geosciences and applied
mineralogy, Eur. J. Mineral., 16, 863–877,
https://doi.org/10.1127/0935-1221/2004/0016-0863, 2004.
Wirth, R.: Focused ion beam (FIB) combined with SEM and TEM: advanced
analytical tools for studies of chemical composition, microstructure and
crystal structure in geomaterials on a nanometre scale, Chem. Geol.,
261, 217–229, https://doi.org/10.1016/j.chemgeo.2008.05.019, 2009.
Xiong, F. H., Yang, J. S., Robinson, P. T., Xu, X. Z., Liu, Z., Li, Y., Liu, F.,
and Chen, S. Y.: Origin of podiform chromitite, a new model based on the
Luobusha ophiolite, Tibet, Gondwana Res., 27, 525–542,
https://doi.org/10.1016/j.gr.2014.04.008, 2015.
Xiong, F., Xu, X., Mugnaioli, E., Gemmi, M., Wirth, R., Grew, E. S., and
Robinson, P. T.: Potential new titanium minerals in corundum from the Cr-11
chromitite orebody, Luobusa ophiolite, Tibet, China: Evidence for
super-reduced mantle derived fluids?, Geol. Soc. Am., 51, 5, https://doi.org/10.1130/abs/2019AM-333493, 2019a.
Xiong, F. H., Xu, X. Z., Mugnaioli, E., Gemmi, M., Wirth, R., Grew, E. S., and Robinson, P. T.: Jingsuiite, IMA 2018-117b, in: New minerals and nomenclature modifications approved in 2019, edited by: Miyawaki, R., Hatert, F., Pasero, M. and Mills, S. J., CNMNC Newsletter No. 52, Mineralogical Magazine, 83, 887–893, https://doi.org/10.1180/mgm.2019.73, 2019b.
Xiong, F. H., Xu, X. Z., Mugnaioli, E., Gemmi, M., Wirth, R., Grew, E., and Robinson, P. T.: Badengzhuite, IMA 2019-076, in: New minerals and nomenclature modifications approved in 2019, edited by: Miyawaki, R., Hatert, F., Pasero, M. and Mills, S. J., CNMNC Newsletter No. 52, Mineralogical Magazine, 83, 887–893, https://doi.org/10.1180/mgm.2019.73, 2019c.
Xiong, F. H., Xu, X.Z., Mugnaioli, E., Gemmi, M., Wirth, R., Grew, E., and Robinson, P. T.: Zhiqinite, IMA 2019-077, in: New minerals and nomenclature modifications approved in 2019, edited by: Miyawaki, R., Hatert, F., Pasero, M. and Mills, S. J., CNMNC Newsletter No. 52, Mineralogical Magazine, 83, 887–893, https://doi.org/10.1180/mgm.2019.73, 2019d.
Xiong, F. H., Xu, X. Z., Mugnaioli, E., Gemmi, M., Wirth, R., and Grew, E. S.:
(K,Sr,box)(Ca,box)3Al6Si10O32, a
dmisteinbergite-like phase from the Luobusa ophiolite, China: Evidence for
quenching at mantle depths?, Goldschmidt Abstracts, 2928, 2020a.
Xiong, F. H., Xu, X. Z., Mugnaioli, E., Gemmi, M., Wirth, R., and Grew, E. S.:
Ti10(Si,P)6−7 and Ti11(Si,P)10, new phases from the
Luobusa ophiolite, China: Implications for crystallization of Ti-Si-P melts,
Goldschmidt Abstracts, 2929, 2020b.
Xiong, F., Xu, X., Mugnaioli, E., Gemmi, M., Wirth, R., Grew, E.S. and
Robinson, P. T.: Jingsuiite, TiB2, a new mineral from the
Cr-11 podiform chromitite orebody, Luobusa ophiolite, Tibet, China:
Implications for recycling of boron, Am. Mineral., submitted, 2020c.
Xiong, Q., Griffin, W. L., Huang, J.-X., Gain, S. E. M., Toledo, V., Pearson,
N. J., and O'Reilly, S. Y.: Super-reduced mineral assemblages in
“ophiolitic” chromitites and peridotites: the view from Mount Carmel,
Eur. J. Mineral., 29, 557–570,
https://doi.org/10.1127/ejm/2017/0029-2646, 2017.
Xu, X., Yang, J., Chen, S., Fang, Q., and Bai, W.: Unusual Mantle Mineral
Group from Chromitite Orebody Cr-11 in Luobusha Ophiolite of Yarlung-Zangbo
Suture Zone, Tibet, J. Earth Sci., 20, 284–302,
https://doi.org/10.1007/s12583-009-0026-z, 2009.
Xu, X. Z., Yang, J. S., Guo, G. L., and Xiong, F. H.: Mineral inclusions in
corundum from chromitites in the Kangjinla chromite deposit, Tibet, Act.
Petrol. Sin., 29, 1867–1877,
2013 (in Chinese with English abstract).
Xu, X. Z., Yang, J. S., Robinson, P. T., Xiong, F. H., Ba, D. Z., and Guo, G. L.:
Origin of ultrahigh pressure and highly reduced minerals in podiform
chromitites and associated mantle peridotites of the Luobusha ophiolite,
Tibet, Gondwana Res., 27, 686–700,
https://doi.org/10.1016/j.gr.2014.05.010, 2015.
Xu, X. Z., Yang, J. S., Xiong, F. H., and Guo, G. L.: Characteristics of
titanium-bearing inclusions found in corundum of Luobusha podiform
chromitite, Tibet, Earth Sci., 43, 1025–1037, 2018 (in Chinese with English
abstract).
Xu, Z. Q., Dilek, Y., Yang, J. S., Liang, H. F., Liu, F., Ba, D. Z., Cai, Z. H., Li, G. W., Dong, H. W., and Ji, S. C.: Crustal structure of the Indus–Tsangpo
suture and its ophiolites in southern Tibet, Gondwana Res., 27, 507–524,
https://doi.org/10.1016/j.gr.2014.08.001, 2014.
Yamamoto, H., Yamamoto, S., Kaneko, Y.,Terabayashi, M., Komiya, T.,
Katayama, I., and Iizuka, T.: Imbricate structure of the Luobusa Ophiolite and
surrounding rock units, southern Tibet, J. Asian Earth Sci., 29,
296–304, https://doi.org/10.1016/j.jseaes.2006.04.004, 2007.
Yang, J. S., Bai, W. J., Fang, Q. S., Yan, B. G., Shi, N. C., Ma, Z. S., Dai, M. Q.,
and Xiong, M.: Silicon-rutile – an ultrahigh pressure (UHP)
mineral from an ophiolite, Progr. Nat. Sci., 13, 528–531, 2003.
Yang, J. S., Bai, W. J., Fang, Q. S., Yan, B. G., Rong, H., and Chen, S. Y.:
Coesite discovered from the podiform chromitite in the Luobusa ophiolite,
Tibet, Earth Science, J. China Univ. Geosci., 29,
651–660, https://doi.org/10.1007/BF02873097, 2004.
Yang, J.-S., Dobrzhinetskaya, L., Bai, W. J., Fang, Q. S., Robinson, P. T.,
Zhang, J., and Green, H. W. II.: Diamond- and coesite-bearing chromitites
from the Luobusa ophiolite, Tibet, Geology, 35, 875–878,
https://doi.org/10.1130/G23766A.1, 2007.
Yang, J. S., Bai, W. J., Fang, Q. S., and Rong, H.: Ultrahigh-pressure minerals
and new minerals from the Luobusa ophiolitic chromitites in Tibet: A review,
Act. Geosci. Sin., 29, 263–274, 2008 (in Chinese).
Yang, J. S., Robinson, P. T., and Dilek, Y.: Diamond-bearing ophiolites and
their geological occurrence, Episodes, 38, 344–364,
https://doi.org/10.18814/epiiugs/2015/v38i4/82430, 2015.
Yu, Z.: Two new minerals gupeiite and xifengite in cosmic dusts from
Yanshan, Acta Petrologica Mineralogica et Analytica 3, 231–238, 1984 (in Chinese
with an English abstract).
Zhang, R.Y., Yang, J.S., Ernst, W. G., Jahn, B.-M., Lizuka, Y., and Guo,
G.L.: Discovery of in situ super-reducing, ultrahigh-pressure phases in the
Luobusha ophiolitic chromitites, Tibet: New insights into the deep upper
mantle and mantle transition zone, Am. Mineral., 101, 1285–1294,
https://doi.org/10.2138/am-2016-5436, 2016.
Zhou, M. F., Robinson, P. T., Malpas, J., and Li, Z.: Podiform chromitites in
the Luobusa Ophiolite (southern Tibet): implications for melt–rock
interaction and chromite segregation in the upper mantle, J.
Petrol., 37, 3–21, https://doi.org/10.1093/petrology/37.1.3, 1996.
Zolotarev, A .A., Krivovichev, S. V., Panikorovskii, T. L., Gurzhiy, V. V.,
Bocharov, V. N., and Rassomakhin, M. A.: Dmisteinbergite,
CaAl2Si2O8, a Metastable Polymorph of Anorthite:
Crystal-Structure and Raman Spectroscopic Study of the Holotype Specimen,
Minerals, 9, 570, https://doi.org/10.3390/min9100570, 2019.
Short summary
Two new nanominerals: titanium monophosphide and titanium disilicide, formed at pressures of Earth’s upper mantle by the action of methane and hydrogen from the mantle on basaltic melts in the Luobusa ophiolite (Tibet). The minerals were characterized by 3D electron diffraction, which can solve the crystal structures of phases less than a micrometer in size. The results contribute to our understanding of deeply subducted crustal rocks and their exhumation back to the Earth's surface.
Two new nanominerals: titanium monophosphide and titanium disilicide, formed at pressures of...
